Rotary valve for internal-combustion engines.



3 SHEETS-SH'EET l.

m j M. 5

m w g ATTORNEYS C.- F. FOUNTAIN 61 W. A. LANGFORD.

ROTARY vALvE FOR- INTERNAL coMBusTloN ENGlNES.

3 SHEETS-SHEET 2.

APPLICATION HLEDIUNE2911915.

w A/ESSES: x lq-Z 2 EYHILLB F. FoUNTmN,

7 WILLLAMLLHNSFORD,

A UUR/VE YS C. F. FOUNTAIN & W. A. LANGFORD. ROTARY VALVE FOR INTERNAL COMBUSTION ENQINES.

APPLICATION FILED IUNE29| I9I5.

Patented July 18, 1.916.

3 SHEETS-SHEET 3.

A TTORNE YS /NVE/vro/s.

WILLIAM A LIINISF URD HILLE F. FIIIJNTAI UNITED STATES PATENT carica.

CYRILLE FRANK FOUNTAIN AND WILLIAMA. LANeFoRD, or PARK CITY, UTAH. i

. ROTARY VALVE Fon INTERNAL-coMBUSTIoN ENGINES.

T 0 all 'whom t may concern Be it known that. we, CYRILLE FRANK FoUNTAiNand VViLLiAM A. LANc'ronD, both residing at Park City, in the county of Suinmit and State of Utah, have invented a new and useful Improvement in Rotary' Valves for Internal-Combustion Engines, of which the following is a specification.

The principal object sought to be attainedby our invention is to provide a coreless rotary inlet and exhaust valve for an internal combustion engine of any of the'usual types, which valve shall be of such asimplev conu struction as to materially reduce-the expense of constructing the engine by eliminating the usual cam shaft; valve lift rods, puppet Valves, et/c y Another object is to provide 'valves forthe purpose set forth of a tubular shape and disposed co-extens'ively with thefengine cylinders near their tops, thewa/l'ves having elongated charge outlet openingsand burnt gas inlet c ipe'nings which communicate at preshaped openings in the cylinder walls at lich times communication is 'established between the cylinder and interior of the tubular Valves vsa to either permit an inrush of a new charge i,

or the exhaust of a burnt charge.

Another object'is to construct the valve body in a peculiar manner so as to5form \lu bricating oil retaining spaces at placesinL termediate of the elongatedA inlet and exhaust ports, these oil spaces being fed bya suitable oil duct arranged over the valve.

Another obiect is to eonstruct'the inlet valve with 4ah annular perforated portion adjacent the carbureter connection so that the incoming charge may be thoroughly mixed as' it' passes through the perforations on its Way to the engine cylinders. l

Another object is to locate the valves and the elongated openings in the cylinder walls which communicate therewith, in such a position that the piston when at thelimit of its compression stroke, will cover the aforesaid 'openings and thus shield. the valve from the instantaneous' high temperature of the ex- S-pecicaton of I.ettersf1atent.r

-cylinderhfour-cycle gasolene engine showing the. app11cat1on of our improved valves to the in letv and exhaust sides thereof. Fig. 2

PatentedJuly 18, 1916. Application med June 2a, i915. serial No. aigoes.

is a central vertical section on line 2-2 onv y Fig.`1. Figs. 3 anda are detail sectional views on lines 3-3 andai-f4 on Fig. 1. Figs. 5 and 6 are detail perspective views of the inlet and exhaust valves respectively. Fi

7 is an elevation of the valve operating gear train, the cover of the casing having been removed. Figs. 8, 9, 10, 11, 12', 13, 14 'andV 15 are diagrammatical views representing ythe l '.various stages of the valves-and piston of one cylinder during one complete cycle of operation.

Our'invention maybey embodied in any type of. a gas engine requiring a char e inlet and an exhaust valve, the presents owing being that of a four-cylinder, four-cycle gasf engine which comprisesthe crank shaft 41 4mounted in bearings on'the crank casing 2,

the crank shaft 1 having theusual cranks 3 to which the pistons 5 are connected vby condrawings. The pistons 5 reciprocate in the chambers top, the chambers 6 being provided `with.

elongated charge inlet ports 8 at one side and similar burnt charge exhaust'ports 9 at the opposite side. `i The ports 8 register at times with elongated openings 1Q in the ro-.

tary charve inlet valve 1 1 mounted in the' ring again -to Fig. 8 it'will be seen thatthel Vexhaust openings 16 in the valve 15 are Aalso 'necting rods@ as shown in Fig. 2 of the arrangedin a series of three for -avpurpose toL he hereinafter explained.

Both rotary valves 11 and 1`5-areA open at one end and by referring to -1 it willhe seen that the inlet valve 11: is shorter than the exhaust valve 15, so thatthe valve limap be completely housed in its casing 80, 6 which are closed by a cap-plate 7 at the I 13, the head of which forms an end closure therefor, while Athe exhaust valve 15 being greater in length extends beyond its easing 13 and will connect directly to the exhaust pipe (not shown) in any suitablepway.

At afplace midway of its length, the inlet valve l1 is perforated by an annular series of'openings 17 which are constantly in register with the opening 18 in the wall of the valve-easing 13 which opening- 18 communicates with the charge inlet pipe which in turn connects to the carbureter not shown. Since the valve 11 is perforated as described and in a zoneA equal in width to that of the opening 18 in the easing 13, communication is constantly had between the interior of the valve 11 and the earbureter thus keeping .the gas supply constant. Again, by makin r the gas inlet to the valve 11 in the ferm o. many small openings, the in-conoing charge is further disintegrated, placed ina better workable condition and one of the principal objects of the invention is thus accomplished. Arranged at intervals along both valves 11 and 15 and midway of the outlet and inlet openings 10 and 1G respectively, are annular depressions 19 and 20. Communicating With the bores 12 and 14 of the valve casings 13 and 13 at places adjacent the depressions 19 and 20, are supplementary duets S21, which as shown in Figs. 3 and l: join a main duct 2:2 which extends the entire length of the valve and is adapted to supply a lubricant thereto. Since the valves are formed with the annular depressions :is above stated, chambers are thus caused in which the lubricant is poelieted anfl a constant supply thereof is assured the consequently raised bearing portions in which the outlet openings 10 and inlet openings 16 in valves 11 and 15, are formed as is clearly shown in Figs. 5 and 6.

Fast-cned to the rotary valves 11 and 15 and formingr closures for the opposite curls of the 1valves, are pinions 23 and letwhich. are driven by a gear 25 which meshes with a pinion' 26 formed integrally with a lai-gre gear 2T which gear 27 in turn meshes with apinion 28 on the engine shaft 1 as shown in Fig. 7 thus by this arrangement of geen ing` the valves 11 and 15 will be rotated at a relatively low speed when the engine is in operation. The train of gears referred to is incasefl in a housing 2) which may be entirely filled with oil so that the gears may be constantly luliaricated as well as supply lubricant to thc'tlucts E22 before referred to, it being understood that in flic event ot an intended inspertion oi' the interior oli' the gear housing: that the oil may lirst be drawn;

olf through a cork :5U shown in dotted lines in Figi.

Operation: By reference to Fig. it will be seen that the cranks 3 on the rranlr shalt port is just closed bj; the advanced ri.

inlet ra lm upenn manana I llllm of their strokes.` the cycle olf operation. coinu mon to the sulfcessire units numbered lv :l l? and 'l being to intalie.y compress. lire unil exhaust a previously burnt charge. lbs cycle ol operation just ilesnriberl abil lol .lowerl by each ot the units in proper .or-- ouence is also li'olionel by nach inlliiilbull unit, therefore it will only be iireassury 1.o fili describe the cycliof operation ol Mpue unil; which will beitleiitieul to all,

Attention is now ilirertesl i'uore airtficuu larly to the rliagraninial cal l? lil et sry. which are. lor puri'iose ol' tltiaaiptiuin considered as being; cross sections olu unit noni ber l. .ln Fifi. the piston has just un covered the inlet port ll ou its rlou'n or suntion stroke anti tbe valvell has rolateil to such a position where one ol' its eerie bl' Lil three openings is just beginning; to regi iler Awith the port tl so that a charge ot las may -beilran'n into tbe cylinder ll emile tl.

Eil ll ton is traveling to the limit ot ita linnn stroke as shrnvn in Fu J anti` lll. llllben :It im this poaitiiin 'the cylliuler is lillell with l tionol faire ll anti the charge in about to be conig'irrssetl Figs. 11 and show both the inlet intl exhaust ports :unl il closed by their rc speetive valves 1l and if aiul tbn pistou. hariiir; comprenant the nir a .n the j et tiringv which liariin...r be.. lione. iik the. piston tlownu'arrlly to ll bf. stroke as in linf. lil, .t nl) exhaust faire han rotatlul tion as to ji.-. infine( pue ol' ij oijieninafs in register with the c El. This lileiing' loue anti tbe tram'elinnr upu'arllly the burnt cb l llll be nxllelleil xbriniggli the er." por i opening.: lll to scalini lnulei shown in Vitez lil, ll. :u time the inlet port rl has rcnlai ln Fig, li the et'lniust'lli l its reni r all remeber the top ol" i l W ub l" pb tion that when the i i .t

the second opening.: lll will r port Fi and the i scribed will be rr will be non i tween the elements in the man train le web Ml as to revollc the inlet unil i-tliallst fallire Ill unil 15, one third ol a revolution While the crank shaft maken two revolutions which. comprises the complete cycle nl one unil ol' the engine.

Hin the piston il when at the limit oil-ils upstrohe crunpletely conn-s the cylinder inM let and. exhaust ports fl abil tl, the rotary valves' 11 and 15 are therefore protected from the effect of the explosion of the charge.

We claim:

1. The combination of a piston chamber having a piston, a casing arranged transversely thereof having a port in communica'-, tion with the chamber the casing being open at one' side and end, a tubular valve in the casing closed at one end by the Wall of the casing and at the other end by a cap gear the valve having a port adapted to register with the cylinder port at times and also having a belt of minute perforations in comn'ninication with the side opening;A for the admission and atonnzation of theelements of the gaseous charge, and a driven gear for i rota-ting the cap gear to move the valve port into registration with the cylinder port as the piston performs a suction stroke.

2. The combination of a piston chamber having a piston, a casing arranged transcharge versely thereof having a port'in communication Withthe chamber the casing having a slde opening andan open end, a tubular valve in the casingr closed 'at one end by the.

wall of the casing and at the other end by a cap gear, the valve having a port adapted to register with the cylinder port at times'and alsoy having a belt of minute perforations in communication with the side opening, for the admission and atomization of the ele-v ments of the gaseous cl1arge,a. driving gear to move the valve port into registration with the cylinder port and admit a charge to the cylinder, the piston in the chamber being adapted to cover the cylinder port at the instant of the subsequent explosion of the Y y CYRILLE FRANK FOUNTAIN. WILLIAM A. LANGFGRD. lYitnessesz' VILLIAM F. WHITTA, A. C. MCDONALD; 

